Enamel material resistant to high and low temperature corrosion, its preparation method, application and high temperature boiling rotary grate furnace device

Abstract

The invention belongs to the technical field of solid waste incineration engineering for environmental protection and resource utilization, and specifically relates to a high- and low-temperature corrosion-resistant enamel material, its preparation method, application and a high-temperature boiling rotary grate furnace device. The high-temperature boiling rotary grate furnace device of the present invention comprises: a fluidized bed, a garbage feeder is connected to the upper part of one side of the fluidized bed; three combustion chambers and a rotary grate roller are respectively connected to the upper part of the other side of the fluidized bed, and the rotary grate roller is located in the upper part of the fluidized bed. The lower part of the third combustion chamber is connected up and down with the third combustion chamber to reduce the fixed carbon content in the ash entering the rotary grate; the air preheater communicated with the upper part of the third combustion chamber away from the fluidized bed, The air preheater has a flue gas to the aftertreatment port. In the present invention, the boiling section belongs to the fluidized bed, the material can be fully turbulent, the boiling section is high temperature at the temperature of the hot air, the reaction rate is accelerated, the inflammables are rapidly burned, and the inflammable ash residue carbon stays in the rotary grate for a long time. sufficient, reduce carbon residues in ash, and eliminate harmful gas emissions such as dioxins.

Description

technical field [0001] The invention belongs to the technical field of solid waste incineration engineering for environmental protection and resource utilization, and specifically relates to a high- and low-temperature corrosion-resistant enamel material, its preparation method, application, and a high-temperature boiling rotary grate furnace device. Background technique [0002] my country's domestic waste has a low low calorific value and is complex and diverse. There are still many problems to be overcome in this field of technology. At present, domestic waste incineration power generation treatment devices mainly use grate furnaces. This type of furnace has several problems: 1. The grate is a fixed bed, and the material is not turbulent. The degree of turbulence is poor, and the residence time is insufficient, resulting in ash The residual carbon in the slag is high, the heat loss rate is high, and it is often "cooked", commonly known as raw ash, which is difficult to re...

AI Technical Summary

Problems solved by technology

At present, domestic waste incineration power generation treatment devices mainly use grate furnaces. This type of furnace has several problems: 1. The grate is a fixed bed, and the material is not turbulent. The degree of turbulence is poor, and the residence time is insufficient, resulting in ash The residual carbon in the slag is high, the heat loss rate is high, and it is often "cooked", commonly known as raw ash, which is difficult to recycle; 2. The oxygen utilization rate of the air is low, the residual oxygen is high, and the temperature in the furnace is not high enough, generally only up to 1000 °C , incomplete combustion, and many combustible and harmful substances; 3. Insufficient utilization of heat energy, small single-furnace treatment scale, and low power generation efficiency

The real difficulty is how the facilities in the furnace can withstand such a high temperature and corrosion intensity, which is a difficult problem that the existing technology has not overcome

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